Information Source: U.S. National Park Service; Mote Marine Lab, Sarasota, FL (decomposition times); National Oceanic and Atmospheric Administration Marine Debris Program. More info about marine debris is available at the NOAA Marine Debris Program and Blue Ocean Society for Marine Conservation websites.
Learn more about plastic in the ocean in “What We Know about: Plastic Marine Debris” Info Sheet and the “Plastics in the Ocean” Info-graphic, both from the NOAA Marine Debris Program.https://www.des.nh.gov/organization/divisions/water/wmb/coastal/trash/documents/marine_debris.pdf